CHES
CHES (CAS 103-47-9), molecular formula C8H17NO3S, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- 2-(Cyclohexylamino)ethanesulfonic acid

| Molecular weight | 207.29 |
|---|---|
| Empirical formula | C8H17NO3S |
| Assay | ≥99.5% (T) |
| Solubility | H2O: soluble0.5 M at 20 °C, clear, colorless |
| pH | 3.0-5.0 (25 °C, 0.5 M in H2O) |
| Loss on drying | ≤0.5% loss on drying, 110 °C |
| Impurities tested | insoluble matter, passes filter test |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26 |
| Anion traces | chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤500 mg/kg |
| Ignition residue | ≤0.05% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Pka 25 °C | 9.3 |
|---|---|
| Market Segment | Diagnostic Assay Manufacturing |
| Uv Absorption | λ: 260 nm Amax: 0.08λ: 280 nm Amax: 0.05 |
| Useful Ph Range | 8.6 - 10.0 |
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is CHES?
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CHES (CAS 103-47-9), molecular formula C8H17NO3S, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to USP, BP and EP standards.
What grades of CHES does Tech Serve Solutions supply?
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Tech Serve Solutions supplies CHES in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of CHES?
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CHES has CAS number 103-47-9 and molecular formula C8H17NO3S. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for CHES?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of CHES ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should CHES be stored?
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Store CHES in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is CHES used for?
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CHES is used in biochemicals & reagents applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for CHES?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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